2017 Map of Coglan Buttes SE

About this map

Lower Chewaucan Marsh and the western shore of Lake Abert define this high-desert basin in Lake County. The landscape is characterized by a sophisticated network of early hydraulic engineering designed to manage water in an arid environment, including the Lower Marsh Canal, Curtis Ditch, and V L Ditch. These waterways suggest a long history of agricultural irrigation and land reclamation efforts. The Chewaucan River flows through the central marshlands, eventually giving way to smaller drainage features like Willow Cr and Juniper Cr. To the north, the terrain rises into the Big Basin, while the southeastern corner is marked by the Coyote Flat Reservoir and Crooked Cr, illustrating how water rights and topography dictated the settlement and utility of this remote Oregon territory.